Orbit Fit and Astrometric record for 10PU75

The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory. Take special note that while the original Bernstein software works with barycentric coordinates, we convert these results into a heliocentric coordinate system.

# Object: 10PU75    
# Created Sun Oct 22 01:37:51 2017
# Orbit generated from Bernstein formalism
# Fitting   62 observations of   66
# Arc:   4.96y
# First observation: 2010/08/18
#  Last observation: 2015/07/24
Preliminary a, adot, b, bdot, g, gdot:
  -0.001953   0.034173   0.000209  -0.004027   0.026941   0.000000
# Chi-squared of fit:    83.59 DOF:  118 RMS:  0.21
# Min/Max residuals:    -0.67    0.56
# Exact a, adot, b, bdot, g, gdot:
  1.499999E-05  3.272407E-02 -1.125685E-05 -3.854378E-03  2.674855E-02 -7.508716E-03
# Covariance matrix:
  2.6631E-13 -1.8855E-13 -1.6406E-14  1.7973E-14 -6.1441E-14 -8.7149E-13
 -1.8855E-13  1.7592E-13  1.8195E-14 -1.9200E-14  4.7823E-14  9.2813E-13
 -1.6406E-14  1.8195E-14  1.1616E-13 -3.5113E-14  2.3699E-15  1.0463E-13
  1.7973E-14 -1.9200E-14 -3.5113E-14  1.4173E-14 -4.7616E-15 -1.0913E-13
 -6.1441E-14  4.7823E-14  2.3699E-15 -4.7616E-15  6.8969E-14  2.3941E-13
 -8.7149E-13  9.2813E-13  1.0463E-13 -1.0913E-13  2.3941E-13  5.2701E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -6.088196  -60.454088   -0.238877   -0.104139   -0.976133  2455414.531976
# Heliocentric elements and errors
Epoch:              2455410.5000  =  2010/08/02
Mean Anomaly:          352.33272 +/-     0.002
Argument of Peri:      256.36876 +/-     0.010
Long of Asc Node:       78.29445 +/-     0.001
Inclination:             8.89299 +/-     0.000
Eccentricity:         0.58442109 +/-    0.0001
Semi-Major Axis:     86.36034246 +/-    0.0105
Time of Perihelion: 2461653.7232 +/-       1.5
Perihelion:          35.88953710 +/-    0.0066
Aphelion:           136.83114782 +/-    0.0173
Period (y)              802.5641 +/-      0.15
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           19.02797841 +/-    0.0002
Ecliptic Y          -33.07777586 +/-    0.0003
Ecliptic Z           -3.96545533 +/-    0.0000
Ecliptic XDOT         0.00251735 +/-    0.0000
Ecliptic YDOT         0.00235918 +/-    0.0000
Ecliptic ZDOT        -0.00031081 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.36571457 +/-    0.0003
Geocenter to KBO     37.38520789 +/-    0.0004
# Hcoef:  5.82

The following table shows the complete astrometric record for 10PU75. The first three columns show the date of observation. The next six columns are RA and DEC. The next column (when provided) is the observed magnitude and filter. The next column is the object name (10PU75) followed by the observatory code and reference code for the source of the astrometry.

2010 08  06.03121  20 12 29.822  -26 11 37.09  20.8R 10PU75    304  C~0M8A      
2010 08  06.10349  20 12 29.416  -26 11 38.47        10PU75    304  C~0M8A      
2010 08  06.17633  20 12 29.059  -26 11 39.70        10PU75    304  C~0M8A      
2010 08  18.19107  20 11 28.540  -26 14 27.43  21.4r 10PU75    304  C~0M8A      
2010 08  18.20570  20 11 28.460  -26 14 27.60        10PU75    304  C~0M8A      
2010 08  18.22762  20 11 28.363  -26 14 27.92        10PU75    304  C~0M8A      
2011 07  31.41314  20 21 26.562  -25 57 16.74  21.7w 10PU75    F51  C~1vWF      
2011 07  31.42799  20 21 26.487  -25 57 17.01  21.5w 10PU75    F51  C~1vWF      
2011 07  31.44276  20 21 26.403  -25 57 17.37  21.4w 10PU75    F51  C~1vWF      
2011 07  31.45758  20 21 26.324  -25 57 17.52  21.4w 10PU75    F51  C~1vWF      
2011 08  04.12049  20 21 06.743  -25 58 23.21        10PU75    304  C~0YXY      
2011 08  04.17909  20 21 06.419  -25 58 23.94        10PU75    304  C~0YXY      
2011 08  04.23766  20 21 06.091  -25 58 25.04        10PU75    304  C~0YXY      
2011 09  21.04594  20 17 45.625  -26 06 09.46        10PU75    304  C~0YXY      
2011 09  21.10841  20 17 45.488  -26 06 09.22        10PU75    304  C~0YXY      
2011 09  21.18039  20 17 45.319  -26 06 09.51  21.1R 10PU75    304  C~0YXY      
2012 05  14.22797  20 34 45.22   -25 15 56.4   21.4R 10PU75    304  C~0iGA      
2012 05  14.34692  20 34 45.14   -25 15 58.2         10PU75    304  C~0iGA      
2012 05  14.43111  20 34 45.09   -25 15 59.4         10PU75    304  C~0iGA      
2012 05  15.22992  20 34 44.63   -25 16 10.7         10PU75    304  C~0iGA      
2012 05  15.35932  20 34 44.53   -25 16 12.8         10PU75    304  C~0iGA      
2012 05  15.43772  20 34 44.47   -25 16 13.9         10PU75    304  C~0iGA      
2012 05  16.25826  20 34 43.91   -25 16 25.6         10PU75    304  C~0iGA      
2012 05  16.29818  20 34 43.86   -25 16 26.5         10PU75    304  C~0iGA      
2012 05  16.35727  20 34 43.82   -25 16 27.4         10PU75    304  C~0iGA      
2012 05  18.22243  20 34 42.22   -25 16 55.5         10PU75    304  C~0iGA      
2012 05  18.28082  20 34 42.16   -25 16 56.4         10PU75    304  C~0iGA      
2012 05  18.34851  20 34 42.09   -25 16 57.4         10PU75    304  C~0iGA      
2012 11  02.21618  20 25 57.347  -25 47 11.51  21.9w 10PU75    F51  C~1vWF      
2012 11  02.22235  20 25 57.367  -25 47 11.31  21.8w 10PU75    F51  C~1vWF      
2012 11  02.22850  20 25 57.377  -25 47 11.25  21.6w 10PU75    F51  C~1vWF      
2012 11  02.23472  20 25 57.386  -25 47 11.17  22.0w 10PU75    F51  C~1vWF      
2013 07  13.46037  20 40 04.293  -25 19 06.51  21.6w 10PU75    F51  C~1vWF      
2013 07  13.47486  20 40 04.217  -25 19 06.78  21.6w 10PU75    F51  C~1vWF      
2013 07  13.49442  20 40 04.117  -25 19 07.22  21.7w 10PU75    F51  C~1vWF      
2013 07  13.50903  20 40 04.039  -25 19 07.58  21.7w 10PU75    F51  C~1vWF      
2013 08  02.40074  20 38 18.315  -25 26 28.76  21.5w 10PU75    F51  C~1vWF      
2013 08  02.41438  20 38 18.240  -25 26 29.00  21.6w 10PU75    F51  C~1vWF      
2013 08  02.42803  20 38 18.164  -25 26 29.30  21.5w 10PU75    F51  C~1vWF      
2013 08  02.44169  20 38 18.082  -25 26 29.58  21.4w 10PU75    F51  C~1vWF      
2014 06  04.56211  20 51 11.358  -24 44 29.84  21.9w 10PU75    F51  C~1vWG      
2014 06  04.57311  20 51 11.334  -24 44 30.06  21.8w 10PU75    F51  C~1vWG      
2014 06  04.58409  20 51 11.313  -24 44 30.25  21.6w 10PU75    F51  C~1vWG      
2014 06  04.59508  20 51 11.287  -24 44 30.30  21.6w 10PU75    F51  C~1vWG      
2014 08  22.38623  20 45 13.029  -25 13 50.87  21.5w 10PU75    F51  C~1vWG      
2014 08  22.39771  20 45 12.963  -25 13 51.09  21.7w 10PU75    F51  C~1vWG      
2014 08  22.40917  20 45 12.912  -25 13 51.19  21.5w 10PU75    F51  C~1vWG      
2014 08  22.42062  20 45 12.851  -25 13 51.44  21.6w 10PU75    F51  C~1vWG      
2014 08  23.39789  20 45 08.000  -25 14 06.82  21.5w 10PU75    F51  C~1vWG      
2014 08  23.40867  20 45 07.945  -25 14 07.06  21.4w 10PU75    F51  C~1vWG      
2014 08  23.41947  20 45 07.887  -25 14 07.16  21.5w 10PU75    F51  C~1vWG      
2014 08  23.43029  20 45 07.844  -25 14 07.35  21.6w 10PU75    F51  C~1vWG      
2014 09  02.30154  20 44 21.648  -25 16 22.94  20.7i 10PU75    F51  C~1vWG      
2014 09  02.31346  20 44 21.539  -25 16 22.81  20.9i 10PU75    F51  C~1vWG      
2014 09  02.33727  20 44 21.409  -25 16 22.96  21.0i 10PU75    F51  C~1vWG      
2014 09  13.28613  20 43 37.241  -25 18 06.37  22.0w 10PU75    F51  C~1vWG      
2014 09  13.29714  20 43 37.215  -25 18 06.42  22.0w 10PU75    F51  C~1vWG      
2014 09  13.30813  20 43 37.168  -25 18 06.60  21.9w 10PU75    F51  C~1vWG      
2014 09  13.31912  20 43 37.127  -25 18 06.47  22.0w 10PU75    F51  C~1vWG      
2014 09  28.25484  20 42 52.635  -25 19 00.99  21.8w 10PU75    F51  C~1vWG      
2014 09  28.26715  20 42 52.613  -25 19 00.85  21.6w 10PU75    F51  C~1vWG      
2014 09  28.27947  20 42 52.593  -25 19 00.93  21.8w 10PU75    F51  C~1vWG      
2015 07  24.44192  20 56 29.176  -24 42 46.77  21.3w 10PU75    F51  C~1vWG      
2015 07  24.45229  20 56 29.129  -24 42 47.07  21.4w 10PU75    F51  C~1vWG      
2015 07  24.46261  20 56 29.076  -24 42 47.28  21.3w 10PU75    F51  C~1vWG      
2015 07  24.47296  20 56 29.016  -24 42 47.55  21.4w 10PU75    F51  C~1vWG      

The following table shows the residuals to the orbit fit. The first coumn is the point number. The second column is the time, in years, measured from the first observation. The third and fifth columns are the regularized positions used in the orbit fit. The fourth and sixth columns are the residuals, in arc seconds, for RA and Dec respectively.

  1   0.0000      0.00 (   0.90)      0.00 (   1.85)
  2   0.0002     -5.63 (   0.56)     -0.15 (   1.69)
  3   0.0004    -10.59 (   0.95)     -0.30 (   1.50)
  4   0.0333   -841.97    -0.06      13.22    -0.07
  5   0.0333   -843.06    -0.18      13.29    -0.05
  6   0.0334   -844.40    -0.06      13.26    -0.14
  7   0.9839   7241.15    -0.34    -803.87    -0.00
  8   0.9840   7240.10    -0.26    -803.90    -0.02
  9   0.9840   7238.92    -0.32    -803.98    -0.10
 10   0.9841   7237.84    -0.26    -803.88     0.01
 11   0.9941   6965.41     0.18    -805.65    -0.67
 12   0.9942   6960.98     0.17    -805.34    -0.36
 13   0.9944   6956.42     0.01    -805.37    -0.41
 14   1.1253   4218.46     0.03    -631.29    -0.51
 15   1.1255   4216.72     0.35    -630.64    -0.29
 16   1.1257   4214.44     0.41    -630.40    -0.57
 17   1.7719  18366.96     0.27   -1076.76     0.42
 18   1.7723  18365.43     0.14   -1078.22     0.38
 19   1.7725  18364.46     0.19   -1079.21     0.36
 20   1.7747  18355.43     0.23   -1088.54     0.43
 21   1.7750  18353.56     0.08   -1090.22     0.27
 22   1.7752  18352.48     0.08   -1091.07     0.31
 23   1.7775  18342.03     0.23   -1100.44     0.56
 24   1.7776  18341.14    -0.08   -1101.13     0.34
 25   1.7778  18340.37     0.05   -1101.86     0.29
 26   1.7829  18311.90     0.07   -1123.45     0.32
 27   1.7830  18310.88     0.07   -1124.11     0.34
 28   1.7832  18309.69     0.11   -1124.83     0.40
 29   2.2428  10941.78    -0.09   -1092.17    -0.07
 30   2.2428  10942.10     0.03   -1092.04     0.00
 31   2.2428  10942.24    -0.02   -1092.02    -0.02
 32   2.2429  10942.38    -0.07   -1091.97    -0.03
 33   2.9362  22531.29    -0.15   -2412.86    -0.03
 34   2.9362  22530.21    -0.13   -2412.85     0.04
 35   2.9362  22528.77    -0.10   -2412.90     0.05
 36   2.9363  22527.64    -0.13   -2412.97     0.04
 37   2.9907  21012.25    -0.02   -2453.66    -0.10
 38   2.9908  21011.20    -0.01   -2453.62    -0.07
 39   2.9908  21010.12    -0.02   -2453.63    -0.08
 40   2.9909  21008.96    -0.12   -2453.61    -0.06
 41   3.8290  31981.52    -0.34   -2962.96    -0.04
 42   3.8290  31981.13    -0.31   -2963.08    -0.04
 43   3.8290  31980.80    -0.24   -2963.18    -0.03
 44   3.8291  31980.44    -0.19   -2963.13     0.14
 45   4.0448  26705.03     0.02   -3266.37    -0.03
 46   4.0448  26704.09    -0.09   -3266.33    -0.04
 47   4.0448  26703.38     0.03   -3266.23     0.01
 48   4.0449  26702.51    -0.02   -3266.24    -0.04
 49   4.0475  26633.86    -0.12   -3262.57     0.02
 50   4.0476  26633.07    -0.15   -3262.60    -0.05
 51   4.0476  26632.27    -0.17   -3262.47     0.03
 52   4.0476  26631.65    -0.03   -3262.49    -0.04
 53   4.0747  25981.41 (   0.97)  -3217.61 (  -0.62)
 54   4.0747  25980.00     0.32   -3217.07    -0.15
 55   4.0748  25978.24     0.05   -3216.72     0.06
 56   4.1047  25364.47     0.06   -3149.37    -0.08
 57   4.1048  25364.11     0.27   -3149.32    -0.11
 58   4.1048  25363.44     0.16   -3149.31    -0.19
 59   4.1048  25362.93     0.22   -3149.03     0.01
 60   4.1457  24758.94    -0.22   -3034.04    -0.12
 61   4.1458  24758.69    -0.09   -3033.82    -0.01
 62   4.1458  24758.40     0.01   -3033.82    -0.12
 63   4.9648  36267.52     0.05   -4158.58     0.02
 64   4.9649  36266.79     0.16   -4158.67    -0.06
 65   4.9649  36266.02     0.20   -4158.65    -0.03
 66   4.9649  36265.13     0.14   -4158.67    -0.02

The following table comes from a 10My integration of the orbit of the object. Three columns are shown. The first column is the result of integrating the nominal orbit. The other two columns are based on clones of the nominal orbit that are +/- 3 sigma from the nominal orbit. If all three types agree then the classificiation is deemed secure. The basis for these calculations is described in more detail in AJ, 129, 1117 (2005). Any use made of these calculations should refer to and credit this publication and the Deep Ecliptic Survey Team.

10PU75    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        85.277    85.304    85.250
ecceobj         0.580     0.580     0.580
incobj          8.909     8.909     8.909
qmin           35.088    35.077    35.063
qmax          138.714   141.699   138.653
amean          85.081    85.254    85.080
amin           83.568    83.351    83.692
amax           87.307    88.881    87.275
emean           0.578     0.578     0.578
emin            0.568     0.566     0.568
emax            0.589     0.594     0.589
imean           7.522     7.668     7.471
imin            7.427     7.300     7.317
imax            7.635     8.186     7.596
excite_mean     0.592     0.593     0.592
fracstop        1.000     1.000     1.000
cjmean          3.075     3.075     3.075

libcent 0      -180.0    -180.0    -180.0
libamp  0      -180.0    -180.0    -180.0
libcent 1      -180.0    -180.0    -180.0
libamp  1      -180.0    -180.0    -180.0
libcent 2      -180.0    -180.0    -180.0
libamp  2      -180.0    -180.0    -180.0
libcent 3      -180.0    -180.0    -180.0
libamp  3      -180.0    -180.0    -180.0
libcent 4      -180.0    -180.0    -180.0
libamp  4      -180.0    -180.0    -180.0

kozaimean       184.3     190.0     192.7
kozaiamp        180.0     179.9     180.0